True to previously announced dates, the first service pack for Windows 7 and Windows Server 2008 R2 is now available via Windows Update.

For Windows 7 users, the service pack offers little more than a roll-up of stability and security fixes. As is typical with Service Packs, some of these fixes have been previously released; others are being made available for the first time. Microsoft has a spreadsheet listing all the hotfixes and security updates within the Service Pack. Two new features are available to Windows Server 2008 R2 users: Dynamic Memory for Hyper-V, and RemoteFX. We've described these more fully in past coverage; Dynamic Memory allows more flexible memory allocation within Hyper-V, and RemoteFX enables server-side GPU acceleration for Hyper-V and Remote Desktop users.